/Engine/Plugins/MovieScene/MovieRenderPipeline/Source/MovieRenderPipelineCore/Public/MoviePipelineQueueEngineSubsystem.h
Returns the active executor (if there is one). This can be used to subscribe to events on an already in-progress render. May be null.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintPure, Category="Movie Render Pipeline") [UMoviePipelineExecutorBase](API\Plugins\MovieRenderPipelineCore\UMoviePipelineExecutorBase) * GetActiveExecutor() const